Classic overhead run-and-gun game
A mod to make and play Terraria mods. Supports Terraria 1.4
Open source clone of the Age of Empires II engine
A free/open source client and automation tool for Ragnarok Online
Set of Python modules designed for writing video games
Powerful, mature open-source cross-platform game engine for Python
The main repository for the development of the evolution game Thrive
Custom launcher for Minecraft to easily manage installations
A free mixin-based injection hacked client for Minecraft
Home theater software and entertainment hub for digital media
Naev is a 2d action/rpg space game, action, rpg and simulation
Solar2D Game Engine main repository (ex Corona SDK)
Mangos ZERO is a server for World of Warcraft
Open Source MMORPG Framework
Godot is a powerful cross-platform game engine
Free and open source real-time strategy game
A free and open-source Touhou Project fangame
A downloadable game for Windows, macOS, and Linux
Self-hosted game stream host for Moonlight
Provides efficient allocation free async/await integration for Unity
3D space trading and combat game
Application that allows you to add multiple accounts into one apps
s&box is a modern game engine, built on Valve's Source 2
UCI chess engine
A completely free, open-source, 2D game engine